In ancient India, saltpetre was used for fireworks; it is actually?
APotassium Nitrate
BLithium Nitrate
CSodium Nitrate
DCalcium Nitrate
Answer:
A. Potassium Nitrate
Read Explanation:
In ancient India, saltpetre, used in fireworks, is actually potassium nitrate (KNO3).
It is also known as nitre and is a component of gunpowder.
KNO3 is a chemical compound with the chemical name Potassium Nitrate.
Potassium nitrate also called saltpetre or nitre is a white solid soluble in water formed by fractional crystallisation of sodium nitrate and potassium chloride solutions.
It occurs naturally as nitre in rocks in India, South Africa and Brazil
